Please answer the following:)

- The CA DFG reported the lead contamination was 1 ppm. - Based on our sample and the standard deviation of the population, we are 90% confident that the lead contamination actually fal15 between 1.1178 and 1.2822 - What is the probability that we would see our 1.2 ppm reading or more from the 100 fish sample if the true mean was 1 ppm with a standard deviation of .5 ppm